Matlockite
      Pasero M, Perchiazzi N
      Mineralogical Magazine 60 (1996) 833-836
      Crystal structure refinement of matlockite
      Locality: Baratti beach, Tuscany, Italy
      _database_code_amcsd 0014521

      CELL PARAMETERS:    4.1100   4.1100   7.2460   90.000   90.000   90.000
      SPACE GROUP: P4/nmm    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    122.400
      Density (g/cm3):      7.098
      MAX. ABS. INTENSITY / VOLUME**2:      306.4089987    
      RIR:     14.055
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.21         13.35        7.2460    0   0   1         2
                24.57         25.28        3.6230    0   0   2         2
                24.91        100.00        3.5750    1   0   1         8
                30.77         51.68        2.9062    1   1   0         4
                32.96         35.76        2.7178    1   0   2         8
                37.23          3.12        2.4153    0   0   3         2
                39.76         43.98        2.2670    1   1   2         8
                43.46         18.03        2.0824    1   0   3         8
                44.07         25.93        2.0550    2   0   0         4
                45.90          2.14        1.9770    2   0   1         8
                49.04         11.12        1.8576    1   1   3         8
                51.10         13.97        1.7875    2   0   2         8
                51.28         29.48        1.7816    2   1   1        16
                55.43         16.00        1.6576    1   0   4         8
                56.11         14.31        1.6392    2   1   2        16
                59.02          3.65        1.5652    2   0   3         8
                63.61         11.07        1.4627    2   1   3        16
                64.08          7.84        1.4531    2   2   0         4
                64.28          2.93        1.4492    0   0   5         2
                69.13          1.33        1.3589    2   0   4         8
                69.73          5.42        1.3487    2   2   2         8
                69.88          5.72        1.3462    3   0   1         8
                72.76          8.13        1.2997    3   1   0         8
                72.94          5.86        1.2969    1   1   5         8
                73.38         13.25        1.2902    2   1   4        16
                73.97          2.97        1.2814    3   0   2         8
                76.51          1.75        1.2451    2   2   3         8
                78.12         10.69        1.2234    3   1   2        16
                80.62          2.73        1.1917    3   0   3         8
                81.22          5.76        1.1843    2   0   5         8
                83.42          4.03        1.1587    1   0   6         8
                84.69          4.24        1.1445    3   1   3        16
                86.41          6.43        1.1261    3   2   1        16
                89.74          3.94        1.0927    3   0   4         8
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.